Regarding the use of the term Hearts and Arrows:
The “Hearts and Arrows” cut is defined as a round brilliant showing a specific pattern when viewed through the “Idealscope” gizmo. All ideal cut diamonds display symmetric patterns, but only one is considered to be superior. The Japanese obsession with quality and precision resulted in diamonds cut so exactly that the shadows of facets produce defined kaleidoscopic patterns.
A small gismo was devised to aid the observation of this effect – the pattern of eight distinct chevron-shaped spots and eight elongated spots visible when the stone is flipped upside down. The original Japanese name “Swords and Shields” was eradicated and replaced by the sugary “hearts and arrows.”
We use only “ideal cut” diamonds, defined as stones with an Excellent cut grade by the Gemological Institute of America. All Ideal cut diamonds display a radiating pattern similar or identical to Hearts and Arrows.
Whether you call it Hearts and Arrows or Swords and Shields™ as we prefer, it simply means that the diamond has an exceptional symmetry.